Intake-valve.



L. L. KNOX.

INTAKE VALVE.

APPLICATION FILED JULY 6, 1914.

Patented Dec. 21, 1915.

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COLUMBIA PLANOGRAPH co.. WASHINGTON. D c.

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LUTHER L. KNOX, or AVALON, PENNSYLVANIA, ASSIGNOR T0 K ox rnnssnn AND,WELDED STEEL ooMrANY, or PITTSBURGH, PENNSYLVANIA, A CORPORATION orPENNSYLVANIA.

To all whom it may concern.

Be it known that I, LUTHER L. KNOX, a citizen of the United States,residing at Avalon, in the county of Allegheny and State ofPennsylvania, have invented a new and useful Improvement inIntake-Valves, of which the following is a full, clear, and exactdescription, reference being had to the accompanying drawings, formingpart of this specification, in which Figure l is a longitudinal verticalsection of an intake valve embodying my invention. Fig. 2 is a sectionon the line IIII of Fig. 1, and Fig- 3 is a detail sectional view of aportion of the valve on a larger scale.

My invention has relation to intake valves for flues, and isparticularly adapted for use as a gas intake valve in connection withthe gas flues of a reversing regenerator furnace, although it may beused for other purposes.

The object of my invention is, to provide a simple and efficient form ofwater-cooled valve which can be readily seated upon the flue; which willform an efiicient seal for the flue when closed; and in which the partsare so constructed and arranged that the sealing pan can be readilyremoved for cleaning or repairs. 7

The nature of my invention will be best understood by reference to theaccompanying drawing in which I have shown a preferred embodimentthereof, and which will now be described, it being premised, however,that various changes can be made in the details of construction andarrangement of the several parts without departing from the spirit andscope of my invention as defined in the appended claims.

In these drawings the numeral 2 designates a flue having an intake port3 extending through its top wall. Seated around this port and formingits upper portion is an annular water trough or pan 4.

5 designates a valve casing having a removable cap or cover 6, andconsisting preferably of a metal shell with an inner refractory' lining7. This valve casing has a connection Sopening into one side thereof andthrough which the gas enters the casing.

The casing 5 is supported at its lower end by an angle 9 resting upon orsecured to a.

plurality of spaced supports 10, which, in

Specification of Letters Patent.

INTAKE-VALVE.

Application filed July 6, 1914- Serial 110. 849,164,.

turn, rest within 'theannular pan or trough 4. The latter is provided atone side with an overflow extension 11 having an ofltake pipe'l2. Seatedwithin the trough or pan and extending upwardly around the lower portionof the valve casing is a cylindrical 'wall13with a packing 13 ofasbestos or other refractory material seated between its upper portionand the adjacent outer shell of the valve casing.

14 designates the valve which consists of a hollow body with a dependinghollow flange adapted to seat around the upper portion of the port 3within the pan or trough 4. This valve has within its upper or bodyportion a baflie plate 15 below which is also preferably arranged asmall baflie or strike plate 16. The stem of the valve consists of aninner hollow pipe or tube 17 and an outer surrounding pipe or tube 18.The inner pipe or tube extends through the baffle 15 and is arranged todirect cooling water directly against the baflie or strike plate 16.This latter is provided to prevent the water from tending to cut throughthe inner wall or shell of the valve. The Water thus discharged spreadsout and flows around the and away through the outer pipe member 18.

19 designates any suitable actuating connection for raising and loweringthe valve to unseat and seat it.

By raising the valve casing 5 and supporting it in its raised positionin any suitable manner, the pan or trough 4 can be readily slid out fromunder it. This permits ready removal of the pan or trough for thepurpose of cleaning, which is of importance owing to the fact that theflue gases cause the deposit of a considerable amount of tar or othercarbonaceous products in the pan, tending to clog it up and fill it.

The entire structure is preferably designed to seat upon the uppersurface of a flue wall, thus'obviating any special setting said pan, acylindrical sealing wall alsoseated in said pan and extending above thelower end of the valve casing, and a packing between the adjacentsurfaces of-said wall and casing, and a valve within the casing and alsoarranged to seat within the pan, substantially as described.

2. An intake "alve structure, comprising, in combination with a fluehaving an intake opening, an annular water pan seated around and formingthe mouth of said opening, a valve casing having a plurality of spacedsupports secured to' and depending below the lower end portion, andresting in said pan, a cylindrical sealing wall also seated insaid panand extending above the lower end of the valve casing, a packing betweenthe adjacent surfaces of said wall and casing, andavalve within thecasing and also arranged to seat within the pan, said casing having arefractory lining and being Copies of this patent may be obtained forheld by said supports above the water level in the pan, substantially asdescribed.

3. An intake valve structure, comprising a water pan removably supportedaround the intake opening of a flue, a valve casing removably seated insaid pan and having open.- ings at its lower portion'which communicatewith the surrounding water space of the pan, said openings extending'above the water level of thepan, a cylindrical sealing wall seated inthe pan and surrounding the lower portion of the valve casing to a pointabove the top of saidopenings, and packing or sealing means between thesaid wall and casing; substantially as described.

In testimony whereof, I have hereunto set 7 my hand.

' Witnesses:

GEO B. BLEMING, GEO. H. PARMELEE.

LUTHER L. KNOX.

five cents each, by addressing the Commissioner of Patents, Washington,D. 0.

